Event Organiser: The British Geotechnical Association

Land instability: Legacy, nature and anthropogenic impacts, Leeds

Free

For much of the 1900s land instability has been dominated by coal mining impacts across large areas of the country, however in the last 30 years or so it has come to be realised that there are also many other forms of ground movement problems. National government funded studies in the 1980s and 1990s demonstrated the wider collapse problems of non-coal mine workings and karstic cavities in soluble rocks. Creation of national land instability databases and increases in computing power has made such spatial data readily available.

Case studies and examples will illustrate the various forms of ground movement across northern England associated with mining legacy, natural cavities (limestone, chalk, gypsum, salt) and will also make reference to triggering mechanism, often anthropogenic. Finally, examples of using new technology to survey and monitor underground cavities and surface ground movement will be presented.

Dr Clive Edmonds

Peter Brett Associates

Clive has wide experience of carrying out geotechnical appraisals of sites for private, public sector and commercial developments. He has been involved in major civil engineering schemes including HS2, Crossrail, Channel Tunnel Rail Link and regularly undertakes expert witness work.

Clive has particular expertise in land instability and has been responsible for the active collection and maintenance of national land instability databases held by Peter Brett Associates. He has a long-standing interest in the impacts of drainage and the mechanisms of failure of all types of natural cavities and mining cavities. He has authored almost 40 technical publications, presented at conferences, meeting and appeared on TV and radio.